How to find out if dealer added antifreeze to Alde water tank

OutbackIdaho

Last fall I asked the dealer to only air out the water tank so I can go dry camping in the winter. Is there a way to verify they did not add antifreeze to the heater? 

Sharon_is_SAM

Well, looks like you have a pre-2021 320 Boondock.  To see if you have antifreeze in the Alde water tank, put a bucket under the Alde glycol drain and lift up the yellow Alde Safety/Relief valve.  

OutbackIdaho

The valve was left open so I’m good! Thank you. When dry camping should the valve be closed to turn on the heat?

Sharon_is_SAM

You can close the Alde yellow flapper valve.  The Alde water tank is separate from the Alde glycol tank.  You can dry camp and use the Alde for heat.